The musician returning after a break should begin with a piece that makes returning welcome.

Coming back to something you loved is fragile in the first hour. Reaching straight for the piece you could once play sets up a comparison with a former version of yourself, and losing that comparison on day one is how people stop for a second time. The first session is not there to measure the gap. It is there to remind you why the thing was worth doing.

Start with something easy and pleasant enough to make you want to sit down again tomorrow. The difficult repertoire will still be waiting once returning has become a habit rather than a test.